Purpose The purpose of this study is to describe police officers’ workplace social networks and to examine how police officers’ social ties, in combination with organisational climate, affect their attitudes towards and willingness to report misconduct.Design/methodology/approach Data were gathered from a vignette survey of 86 response police officers in an English county police force. Officers’ attitudes towards misconduct and likelihood of reporting were analysed using multivariable regression models.Findings Descriptively, most officers have a small social network within the force, and police comprise about one-third of their total social networks. Officers were generally highly disapproving of misconduct and expressed they would challenge their peers in most scenarios, though reporting misconduct was somewhat less likely. Perceived peer disapproval of misconduct is a strong predictor of officers’ disapproval of misconduct and expressed likelihood of reporting misconduct. Organisational justice and social embeddedness were not usually associated with the challenging and reporting of misconduct.Originality/value This study is one of only a handful to report information on police officers’ friendship networks in the workplace, and these results show that peer influence remains an important vector for police management to use in promoting prosocial police culture and preventing misconduct.